The infusion contains very little of the oil and is of very slight value.
But according to one, the second part of the word comes from the Greek Xvï¿½ï¿½ia, pouring, infusion, used in connexion with the study of the juices of plants, and thence extended to chemical manipulations in general; this derivation accounts for the old-fashioned spellings " chymist " and " chymistry."
With the spread of their empire to Spain the Arabs took with them their knowledge of Greek medicine and science, including alchemy, and thence it passed, strengthened by the infusion of a certain Jewish element, to the nations of western Europe, through the medium of Latin translations.
The pharmacopeial tincture may be given in doses of five to fifteen minims, and the infusion has the unusually small dose of two to four drachms - the dose of other infusions being an ounce or more.
Until the Revolution no duty was laid on tea other than that levied on the infusion as sold in the coffee-houses.